<?php

/**
 * EXHIBIT A. Common Public Attribution License Version 1.0
 * The contents of this file are subject to the Common Public Attribution License Version 1.0 (the “License”);
 * you may not use this file except in compliance with the License. You may obtain a copy of the License at
 * http://www.oxwall.org/license. The License is based on the Mozilla Public License Version 1.1
 * but Sections 14 and 15 have been added to cover use of software over a computer network and provide for
 * limited attribution for the Original Developer. In addition, Exhibit A has been modified to be consistent
 * with Exhibit B. Software distributed under the License is distributed on an “AS IS” basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language
 * governing rights and limitations under the License. The Original Code is Oxwall software.
 * The Initial Developer of the Original Code is Oxwall Foundation (http://www.oxwall.org/foundation).
 * All portions of the code written by Oxwall Foundation are Copyright (c) 2011. All Rights Reserved.

 * EXHIBIT B. Attribution Information
 * Attribution Copyright Notice: Copyright 2011 Oxwall Foundation. All rights reserved.
 * Attribution Phrase (not exceeding 10 words): Powered by Oxwall community software
 * Attribution URL: http://www.oxwall.org/
 * Graphic Image as provided in the Covered Code.
 * Display of Attribution Information is required in Larger Works which are defined in the CPAL as a work
 * which combines Covered Code or portions thereof with code not governed by the terms of the CPAL.
 */

/**
 * API Responder
 *
 * @author Sergey Kambalin <greyexpert@gmail.com>
 * @package ow_system_plugins.base.controllers
 * @since 1.0
 */
class BASE_CTRL_ApiResponder extends OW_ActionController
{
    private function validateParams( $params, $requiredList )
    {
        $fails = array();
        
        foreach ( $requiredList as $required )
        {
            if ( empty($params[$required]) )
            {
                $fails[] = $required;
            }
        }
        
        if ( !empty($fails) )
        {
            throw new InvalidArgumentException('Next params are required: ' . implode(', ', $fails));
        }
    }
    
    public function triggerEvent($params)
    {
        $this->validateParams($params, array('eventName'));
        
        $eventName = trim($params['eventName']);
        $eventParams = empty($params['params']) ? array() : $params['params'];
        $eventData = empty($params['data']) ? array() : $params['data'];
        
        $event = new OW_Event($eventName, $eventParams, $eventData);
        
        OW::getEventManager()->trigger($event);
        
        return $event->getData();
    }
}